On Wed, Jun 01, 2016 at 08:11:38PM -0400, Vishwanath Pai wrote:
> +static void
> +cfg_copy(struct hashlimit_cfg2 *to, void *from, int revision)
> +{
> + if (revision == 1) {
> + struct hashlimit_cfg1 *cfg = (struct hashlimit_cfg1 *)from;
> +
> + to->mode = cfg->mode;
> + to->avg = cfg->avg;
> + to->burst = cfg->burst;
> + to->size = cfg->size;
> + to->max = cfg->max;
> + to->gc_interval = cfg->gc_interval;
> + to->expire = cfg->expire;
> + to->srcmask = cfg->srcmask;
> + to->dstmask = cfg->dstmask;
> + } else if (revision == 2) {
> + memcpy(to, from, sizeof(struct hashlimit_cfg2));
> + } else {
> + BUG();
BUG here is probably too much, this halts the system. I can see we
only use this somewhere else in this code. Instead, I'd suggest you
propagate an error back to userspace if this ever happen.
I would like to see if this spots any problem with our test
infrastructure under iptables/.
Thanks.
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